Thomas Rhett performs at the Houston Livestock Show and Rodeo...photo-15023431.142214 - |ucfirst

Chainsmokers member Drew Taggart stands on the stage as Alex Pall dj's during the bands performance at the Houston Livestock Show and Rodeo on Sunday, March 12, 2017, in Houston. Tutor played first. ( Elizabeth Conley / Houston Chronicle ) less

Chainsmokers member Drew Taggart stands on the stage as Alex Pall dj's during the bands performance at the Houston Livestock Show and Rodeo on Sunday, March 12, 2017, in Houston. Tutor played first. ( Elizabeth ... more

Photo: Elizabeth Conley, Staff

Chainsmokers member Drew Taggart stands on the stage as Alex Pall...photo-15023059.142214 - |ucfirst

Chainsmokers perform during the Houston Livestock Show and Rodeo on Sunday, March 12, 2017, in Houston. Tutor played first. ( Elizabeth Conley / Houston Chronicle )

Chainsmokers perform during the Houston Livestock Show and Rodeo on Sunday, March 12, 2017, in Houston. Tutor played first. ( Elizabeth Conley / Houston Chronicle )

Photo: Elizabeth Conley, Staff

Chainsmokers perform during the Houston Livestock Show and Rodeo...photo-15023060.142214 - |ucfirst

Demi Lovato performs at the Houston Livestock Show and Rodeo...photo-12550702.142214 - |ucfirst

Demi Lovato charged through pop anthems "Confident" and "Heart Attack" along with a number of deep album cuts during her performance Tuesday at the Houston Livestock Show and Rodeo. She replaced the previously announced Meghan Trainor. less

Demi Lovato charged through pop anthems "Confident" and "Heart Attack" along with a number of deep album cuts during her performance Tuesday at the Houston Livestock Show and Rodeo. She replaced the previously ... more

Alan Jackson enjoys his performance at RodeoHouston on Saturday night before a crowd of 74,259. He has made a habit of it. Jackson has appeared at RodeoHouston 23 times and in front of 1 million people.

Alan Jackson enjoys his performance at RodeoHouston on Saturday night before a crowd of 74,259. He has made a habit of it. Jackson has appeared at RodeoHouston 23 times and in front of 1 million people.